Filter for attachment to an in-ear hearing aid to prevent the migration of ear wax into the hearing aid



FIG. 1 is a side perspective view of a filter for attachment to an in-ear hearing aid to prevent the migration of ear wax into the hearing aid showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof, the opposite side is identical;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view of a second embodiment thereof;

FIG. 6 is a bottom plan view of the embodiment of FIG. 5; and,

FIG. 7 is a side elevational view of the embodiment of FIG. 5, the opposite side, front and rear views are all identical. 

The ornamental design for a filter for attachment to an in-ear hearing aid to prevent the migration of ear wax into the hearing aid, as shown and described. 